Phenothrin

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Phenothrin
IUPAC name (3-Phenoxyphenyl)methyl 2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropane-1-carboxylate
Other names Sumithrin
Phenothrine
Phenoxythrin
Sumitrin
Wellcide
Pibutin
Anvil
Duet
Anchimanaito 20S
Identifiers
CAS number [26002-80-2]
PubChem 4767
EINECS number 247-404-5
MeSH Phenothrin
SMILES CC(=CC1C(C1(C)C)C(=O)OCC2=CC(=CC=C2)OC3=CC=CC=C3)C
Properties
Molecular formula C23H26O3
Molar mass 350.451 g/mol
Melting point

<25 °C

Boiling point

>290 °C

Hazards
R-phrases R36 R38
Except where noted otherwise, data are given for
materials in their standard state
(at 25 °C, 100 kPa)

Infobox disclaimer and references

Phenothrin, also called sumithrin, is a synthetic pyrethroid that kills adult fleas and ticks. It has also been used to kill head lice in humans.

Phenothrin is often used with methoprene, an insect growth regulator that interrupts the insect's biological life cycle by killing the eggs.

In 2005, the EPA required Hartz Mountain Corporation to cancel uses of several flea and tick products containing phenothrin that may be associated with a range of adverse reactions, including hair loss, salivation, tremors, and numerous deaths in cats and kittens. In the short term, the agreement calls for new warning labels on the products.

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